Sienna making a boiling sound near driver side

2Charlie2Charlie Member Posts: 1
edited November 2022 in Toyota
This boiling sound has been going on for a couple of years. You may have to crank up the volume a bit to hear it in this video. I thought it was the coolant so I've flushed with all new coolant. However, it's still making this bubbling/boiling sound. The vehicle still operates fine but I couldn't figure out where and why it's making this found. I usually hear this sound when the vehicle is at rest.
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